Which to use
“sei” is a verb and “seum” is a noun - they look or sound alike but fill different roles in a sentence.
- #36,154
- “sei” frequency rank
- #49,357
- “seum” frequency rank
- 85511
- confusion score
Side-by-Side Comparison
| Feature | sei | seum |
|---|---|---|
| Definition | Deuxième personne du singulier de l’impératif présent de sein. | Rancœur, sentiment de colère, de frustration et de dégoût ; cause de ce dégoût. |
Where the eye mixes sei and seum
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. sei runs 3 letters (CVV) against seum's 4 (CVVC) - the length gap alone is often enough to separate them once you know to check it.
Look-alike desk: sei vs seum
These two trip readers on the page rather than in the ear: sei is \zaɪ̯\ while seum is \sœm\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 85511, derived from the frequency rank of both members and their visual similarity.
sei is recorded at frequency rank #36,154, classified as averb, pronounced \zaɪ̯\. seum is at rank #49,357, tagged as anoun, pronounced \sœm\.
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 85511, this pair ranks #11,252 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of sei vs seum
Shared letters: es. Private to "sei": i. Private to "seum": mu.
"sei" · 3 letters · shape CVV · "seum" · 4 letters · shape CVVC
Known mistypes of this pair
- seum ← esum · semu · seumm · sseum · suem
Frequently Asked Questions
Can "sei" and "seum" be used interchangeably?
Which is more common, "sei" or "seum"?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "sei" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "seum" - compare definitions side by side with the headword page. Word entry
- This pair ranks #11,252 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "sei" and "seum" also get mixed up with nearby pairs, the highest-scored neighbour is "seum vs suu". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #11,252 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.